Associations among anxiety, self-efficacy, and self-care in rural adolescents with poorly controlled asthma

Background: Rural adolescents are vulnerable to asthma; good self-care can reduce morbidity. The subtypes of anxiety (eg, asthma-related, generalized) may have differential associations with asthma self-care. Low self-efficacy, a determinant of behavior, is associated with increased anxiety. Little is known regarding these relationships in rural adolescents.

Objective: To evaluate whether anxiety symptoms are associated with asthma symptom prevention and management among rural adolescents and whether self-efficacy mediates these relationships.

Methods: We used baseline data from 197 rural adolescents (mean age = 16 years; 69% girls; 62% Black) who were part of a trial that tested the effectiveness of a school-based asthma intervention. Adolescents completed the Youth Asthma-Related Anxiety Scale, Screen for Child Anxiety and Emotional Disorders, Asthma Management Self-efficacy Index, and Asthma Prevention and Management Indices. Linear regression was performed to test whether: (1) asthma-related and generalized anxiety had curvilinear relationships with self-care; (2) social and separation anxiety had linear relationships with self-care; and (3) self-efficacy mediated relationships.

Results: Asthma-related anxiety had a significant curvilinear relationship with prevention (P = 0.001) and a linear association with management (P = .01). Generalized anxiety had a significant curvilinear association with management (P = .03), whereas social anxiety had a significant linear relationship with prevention (P = .04). Self-efficacy partially or fully mediated these relationships.

Conclusion: Anxiety symptoms were associated with asthma self-care among this sample of rural adolescents, with differing roles for prevention and management. Self-efficacy may be a mechanism to improve asthma self-care among rural adolescents with anxiety. With a lack of self-efficacy, asthma-related, generalized, or social anxiety may motivate adolescents to take steps to care for their asthma.